5 Questions
OLEDs are used to create digital displays in devices such as television screens, computer monitors, and portable systems such as smartphones and handheld game consoles. A major area of research is the development of white OLED devices for use in solid-state lighting applications. There are two main families of OLED: those based on small molecules and those employing ______.
polymers
An OLED display can be driven with a passive-matrix (PMOLED) or active-matrix (AMOLED) control scheme. In the PMOLED scheme, each row and line in the display is controlled sequentially, one by one, whereas AMOLED control uses a thin-film transistor (TFT) backplane to directly access and switch each individual pixel on or off, allowing for higher resolution and larger display sizes. OLED is fundamentally different from LED which is based on a ______ diode structure.
p-n
In LEDs doping is used to create p- and n- regions by changing the conductivity of the host semiconductor. OLEDs do not employ a ______ structure.
p-n
Adding mobile ions to an OLED creates a light-emitting electrochemical cell (LEC) which has a slightly different mode of operation. An OLED display can be driven with a ______ or active-matrix (AMOLED) control scheme.
passive-matrix
OLED is fundamentally different from LED which is based on a p-n diode structure. In LEDs doping is used to create p- and n- regions by changing the conductivity of the host semiconductor. OLEDs do not employ a ______ structure.
p-n
Test your knowledge about organic light-emitting diode (OLED) technology, which is widely used in digital displays for devices such as television screens, computer monitors, and portable systems. Learn about the emissive electroluminescent layer and its applications.
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